A lot of it is about learning how to learn. Developing skill and mastery is a similar problem in almost any field, and you can learn a lot by reading from masters in other fields. I'm currently reading Handmade: Creative Focus in the Age of Distraction , by Gary Rogowski, who makes furniture. The first half of the book, at least (that's how far I am) is all about the wide variety of difficult lessons he's learned on…
This is interesting to me. Would you have any other book recommendations in this vein?
Shop Class as Soulcraft, by Matthew B. Crawford. This is a much more philosophical/academic argument that skilled manual labor is both intellectually and morally superior to most office work - you're shaping reality, rather than shaping yourself. I happily lump the craft of software development in with physical labor here, though, as it faces the same kinds of reality-based limitations.
Zen Mind, Beginner's Mind, by Shunryu Suzuki. Transcribed lectures by a well-known Zen monk. The entire book is basically about learning how to sit still. If you can't even sit still, how do you expect to do anything else well? And do you have any idea what it even means to just sit still?